Granted Patent
Utility
US 4,711,673 · App. 06/783,863
Combination of surface modifiers for powdered inorganic fillers
Inventors:
Lawrence L. Musselman, Thomas L. Levendusky
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Oct 3, 1985
Inventors
Lawrence L. Musselman
Thomas L. Levendusky
Assignee (at issue)
Aluminum Company of America
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.